Introduction Thank you for purchasing this Audio-Technica product. Before using the product, please read through the Quick Start Guide and Caution Guide, as well as this user manual when necessary, to ensure that you will use the product correctly. Safety precautions Although this product was designed to be used safely, failing to use it correctly may result in an accident.
Safety precautions Cautions for rechargeable battery The product is equipped with a rechargeable battery (lithium polymer battery). • If battery fluid gets into eyes, do not rub them. Rinse • Do not use, leave or store the battery in the following places: –...
Notes on use • Be sure to read the connected device’s user manual before use. • Make sure to hold the plug when connecting and disconnecting the included cable or USB charging cable. The included cable or • Audio-Technica will not be liable in any way for any loss of data in USB charging cable may become severed or an accident may the unlikely event that such losses should occur while using the occur if you pull on the cable itself.
Part names and functions Left/right (L/R) indicator Housing Bushing The left bushing Power supply/control button has a protrusion Use to turn the power supply ON/OFF , play/ for distinguishing pause music and videos, and answer/end between the left and phone calls. right.
Charging the battery • Fully charge the battery when using for the first time. • When the rechargeable battery is running low, the product will sound 2 sets of 2 beeps through the headphones, and an indicator lamp will flash in red. When these beeps sound, charge the battery. •...
2. Use your Bluetooth device to begin the pairing process and search for the product. When your Bluetooth device finds the product, "ATH-CKR35BT" will be displayed on the device. • For information about using your Bluetooth device, refer to the device’s user manual.
Using the product The product can use Bluetooth wireless technology to connect to your device and play music, receive phone calls, etc. Use the product for whichever of these purposes suits your needs. Note that Audio-Technica cannot guarantee the operation of displays, such as the battery level display, or applications via Bluetooth devices.
Using the product Listening to audio • To connect for the first time, pair the product and your device by Bluetooth wireless technology. If you have already paired the product and your Bluetooth device, turn on the Bluetooth device’s Bluetooth connection and turn on the product.
Using the product Talking on the phone • If your Bluetooth device supports telephone features, you can use the product to talk on the phone. • When your Bluetooth device receives a phone call, the product sounds a ring tone. •...
Page 11
Cleaning Get into the habit of regularly cleaning the product to ensure that it will last for a long time. Do not use alcohol, paint thinners or other solvents for cleaning purposes. • To clean, wipe with a dry cloth. •...
Eartips Eartip size The product includes silicone eartips in 4 sizes (XS, S, M, and L). At the time of purchase, the M-size silicone eartips are attached. To ensure the best sound quality, select the eartip size that is best suited for you, and adjust the eartips inside your ears for a snug fit.
Troubleshooting Problem Solution Power is not supplied. • Charge the product. Unable to pair. • Visit our website for information on compatible models. • Confirm that the Bluetooth device communicates using Ver. 2.1+EDR or higher. • Place the product and the Bluetooth device within 1 m (3.3') of each other. •...
Troubleshooting SBC priority connections (measures for when sound is delayed significantly) When connected via AAC codec, significant sound delays can be alleviated by changing the connection codec to the SBC codec, an audio compression format that comes standard with Bluetooth devices.* Connecting to a SBC priority connection 1.
Specifications Headphones Type Dynamic Driver 9.8 mm Sensitivity 102 dB/mW Frequency response 5 to 24,000 Hz Impedance 16 ohms Microphone Type Electret condenser Polar pattern Omnidirectional Sensitivity -44 dB (1 V/Pa, at 1 kHz) Frequency response 100 to 10,000 Hz Communication specifications Communication system Bluetooth version 4.1...